Vemo V95-72-0017 Sender Unit, coolant temperature

Vemo V95-72-0017 Sender Unit – Coolant Temperature Sensor

The Vemo V95-72-0017 Sender Unit is a precision-engineered coolant temperature sensor designed for automotive and industrial applications. It delivers reliable, high‑accuracy readings of the engine or system coolant temperature, enabling optimal performance, protection against overheating, and efficient thermal management.

Key Features

• High Accuracy: ±0.5 °C over the full operating range ensures precise monitoring for critical systems.
• Wide Temperature Range: Operates from –40 °C to +150 °C, suitable for both cold climates and high‑performance engines.
• Robust Construction: Stainless steel housing resists corrosion, vibration, and harsh chemical environments.
• Compact Design: Small footprint (approx. 25 mm × 15 mm) allows installation in tight engine bay spaces.
• Standardized Connector: 3‑pin or 4‑pin output compatible with most vehicle ECU and monitoring systems.
• Long Life Span: Rated for 10,000 hours of continuous operation under typical automotive conditions.

Technical Specifications

Compatibility and Applications

The V95-72-0017 is engineered for seamless integration with a wide range of automotive platforms. It is the exact replacement for:

• Volvo models such as the V70 I, where it matches the original OEM sensor specifications.
• Other European vehicles that use the Vemo Q+ series coolant temperature sensors.
• Industrial cooling systems requiring precise temperature monitoring.

Its standardized connector and signal output make it compatible with most engine control units (ECUs), telematics modules, and aftermarket diagnostic tools.

Installation Guide

1. Preparation: Disconnect the vehicle battery to prevent electrical shock. Drain a small amount of coolant if necessary to avoid spills during removal.
2. Removal: Unscrew the existing sensor using an appropriate socket or wrench. Carefully detach the connector, noting the orientation for reinstallation.
3. Installation: Position the new V95-72-0017 in the coolant passage, ensuring it is fully seated. Reconnect the electrical connector, aligning pins correctly.
4. Securing: Tighten the sensor housing to the manufacturer’s torque specification (typically 5–8 Nm). Use a thread‑locking compound if recommended.
5. Testing: Refill coolant to the proper level. Start the engine and allow it to reach operating temperature. Verify that the ECU or monitoring device displays a stable, accurate temperature reading.

Maintenance Tips

• Inspect the sensor housing for corrosion or damage after every major service interval.
• Ensure coolant is free of contaminants; dirty coolant can affect sensor accuracy.
• Replace the sensor if readings drift beyond ±0.5 °C, indicating potential failure.

Benefits for Vehicle Performance

A reliable coolant temperature sensor like the V95-72-0017 is critical for:

• Maintaining optimal engine operating temperatures to prevent overheating.
• Enabling accurate fuel injection and ignition timing adjustments based on real‑time thermal data.
• Supporting advanced driver assistance systems (ADAS) that rely on temperature inputs for sensor calibration.

Conclusion

The Vemo V95-72-0017 Sender Unit – Coolant Temperature Sensor combines precision, durability, and ease of installation. Its compatibility with a broad spectrum of automotive models, including Volvo and other European vehicles, makes it an indispensable component for maintaining engine health and ensuring reliable vehicle operation.